I have an 18000gallon in ground pool with cover. My intellichlor light flashed low salt, but unit was still making chlorine. I checked the control unit that gave me a read out of 2700ppm, water temp 56F. I added 40lbs of salt, no where near enough to bring the level to normal. I waited two days and the unit recorded 3050ppm. A week later I turned the heat on (yup, Mother's day in Seattle) and the salt water level shot to 3850 in a matter of days, water temp 80F. On the Intellichlor unit itself there is a green light: all okay! I checked chlorine level 1,5 - 2 (dpd tablet), pH 7.6 and total alkalinity 110. Water looks, smells, tastes fine.
Have I brought more salt into solution by heating the pool?
Do I have a faulty wall unit or are they just eye candy and generally inaccurate??
Any thoughts greatly appreciated!